Tidy util headers and make ec_commands.h not include other headers

In preparation for being able to copy ec_commands.h to u-boot, which
is itself in preparation for u-boot picking it up from /usr/src/ec/

BUG=none
TEST=make link, snow, bds

Change-Id: If256434b6722ff0787ce21a8ed4c7035c28024a8
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/26451
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>

include/ec_commands.h

@@ -8,8 +8,6 @@
 #ifndef __CROS_EC_COMMANDS_H
 #define __CROS_EC_COMMANDS_H
 
-#include "common.h"
-
 /* Protocol overview
  *
  * request:  CMD [ P0 P1 P2 ... Pn S ]

util/burn_my_ec.c

@@ -10,10 +10,7 @@
 #include <sys/param.h>
 #include <unistd.h>
 
-#include "config.h"
 #include "comm-host.h"
-#include "ec_commands.h"
-#include "system.h"
 
 #define STR0(name)  #name
 #define STR(name)   STR0(name)

util/comm-host.h

@@ -6,7 +6,8 @@
 #ifndef COMM_HOST_H
 #define COMM_HOST_H
 
-#include <stdint.h>
+#include "common.h"
+#include "ec_commands.h"
 
 /* Perform initializations needed for subsequent requests
  *

util/comm-i2c.c

@@ -18,7 +18,6 @@
 #include <sys/types.h>
 
 #include "comm-host.h"
-#include "ec_commands.h"
 
 #define EC_I2C_ADDR 0x1e
 

util/comm-lpc.c

@@ -10,7 +10,6 @@
 #include <unistd.h>
 
 #include "comm-host.h"
-#include "ec_commands.h"
 
 #define INITIAL_UDELAY 5     /* 5 us */
 #define MAXIMUM_UDELAY 10000 /* 10 ms */

util/ectool.c

@@ -12,11 +12,8 @@
 #include <unistd.h>
 
 #include "battery.h"
-#include "board.h"
 #include "comm-host.h"
-#include "ec_commands.h"
 #include "lightbar.h"
-#include "system.h"
 #include "vboot.h"
 
 /* Handy tricks */

util/lbplay.c

@@ -12,7 +12,6 @@
 
 #include "comm-host.h"
 #include "lightbar.h"
-#include "ec_commands.h"
 
 /* Handy tricks */
 #define BUILD_ASSERT(cond) ((void)sizeof(char[1 - 2*!(cond)]))